But they haven't? The 55k never came in a manual, and the 63 never came in a manual. In fact, AMG built the 63 to have less torque than the 55k so they could use their then new 7-speed transmission. Mercedes won't risk 600+ pounds of torque snapping a transmission if the driver messes up nor give up putting in their 7-speed transmission, which might in itself be in doubt if the 600+ lbs of torque is accurate.

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Originally Posted by ///Mantis

not really... they can design it to handle all that power just like they have to design the entire power train and chassis to handle all the power